Reduction in antigenesity of whey protein by alcalase

Abstract

:The aim of this study was to produce enzymatic hydrolysis of α-LA, β-LG and BSA with alcalase for the possible application of hypoallergenic foods toward cow's milk allergenic infant. The molecular weights of most of the peptides in hydrolysates from α-LA, β-LG and BSA by alcalase were below 3,000 dalton. Antigenesity of α-LA, β-LG and BSA hydrolysates to rabbit anti-α-LA antiserum, β-LG antiserum and BSA antiserum were remarkably decreased by more than 10 -3 at 20% inhibitionrate. Antigenesity of polyvalent antigenic peptide in α-LA, β-LG and BSA hydrolysates to specific rabbit anti-α-LA antiserum, β-LG antiserum and BSA antiserum was determined by PCS test using guina-pig.Hydrolysates of α-LA, β-LG and BSA with less than 3,000 dalton did not show polyvalent antigenic reaction against rabbit antiserum. Hydrolysates of α-LA, β-LG and BSA could be a source for the manufacturing of hypoallergenic food.